Update package import paths

README.md

benchmark/benchmark.go

cmd/benchmark.go

cmd/node.go

cryptops/keygen.go

cryptops/keygen_test.go

cryptops/precomputation/decrypt.go

cryptops/precomputation/decrypt_test.go

cryptops/precomputation/encrypt.go

cryptops/precomputation/encrypt_test.go

cryptops/precomputation/generation.go

cryptops/precomputation/generation_test.go

cryptops/precomputation/permute.go

cryptops/precomputation/permute_test.go

cryptops/precomputation/reveal.go

cryptops/precomputation/reveal_test.go

cryptops/precomputation/share.go

cryptops/precomputation/share_test.go

cryptops/precomputation/slots.go

cryptops/precomputation/strip.go